Since its introduction at Microsoft's BUILD conference last September, Windows 8 has garnered a large measure of attention, especially with regards to the new Metro interface. The feature that intrigued me the most, however, was the inclusion of Hyper-V.

So, we're talking about virtualization for desktop use. For such scenariosn, the things listed (no NAT, sound or USB, no shared folders, also "If you have other VM software installed at the same time, it will likely refuse to run") do not make it particularly interesting and/or usable. I'd take VBox any day for desktop use over it.